.. is probably being driven by a moron. In a Guardian article about sticky Toyota accelerator pedals was this quote:

“I was driving in my Toyota Yaris at 60mph on a dual carriageway .. when my accelerator pedal failed to respond when I lifted my foot off the pedal. I applied the foot brake. It then took two and a half miles for it to be slow enough for me to drive half on to the verge, where the car stalled.”